James



No. 606,655. Patented July 5, |898. J. H. FOGARTY.

FLOAT VALVE. (Application med oet` '15, 18m.)

(No Model.)

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l UNITED STATES;

PATENT OFFICE.

`JAMES I-I. FOGARTY, OF NEIV YORK, N. Y.

. i, v FLOAT-VALVE..

v SPECIFICATION formingpart of Letters Patent No. 606,655, datedJ'uly 5,1898. Application filed October 15, 1897. l Serial No. 655,352. (NomodelJ The obj ect of my invention is to provide an s automatic meansfor draining a iioat-valve of any accumulation of liquid which may findits way therein.

A further object is to provide a balanced valve with a oat device fornormally seating the same and for unseating the valve upon a change ofthe normal water-line of the floatcontaining vessel.

With these features in View my invention consists of the followingconstruction and combination of parts, the details of vwhich will firstbe fully described and thefeatures of noveltyl contained therein thenset forthand claimed.

Figure 1 represents a sectional elevation of an apparatus to which Ihave applied my invention. Fig. 2 represents a transverse elevation andsection looking downwardly upon the line a: w of Fig. 1. Fig. 3 is asectional view of the valve-chamber, taken on the line y y of Fig. 4,showing the valve removed.V Fig. 4 is a vertical section on the line z zof Fig. l1 with parts in elevation. Fig.- 5 is an enlarged detailedsectional view of the float and valve stems, with pipe connection partlybroken away. l Fig. 6 is a longitudinal section of the valve-stem andpipe connection. Fig.

7 is a similar view, partly in sectionv and partly in'elevation, of amodified form.

My invention is particularly applicable to steam-traps; but it may beapplied in other connections and for other purposes for controllingtheiow of a iiuid for which it may be found adapted. For the illustrationof my invention, however, lit will be described only in connection witha steam-trap.

In the drawings, 1 represents a chamber l containing a float 2, providedwith oppositely-k disposed stems 3, arranged to have a limited verticalreciprocating movement in bearings 4 at the l[op and bottom of saidchamber. The lower end of chamber 1 is preferably formed with acontracted extension 5, within which 'the lower float-stem 3 operates.

6 is a valve-chamber, preferably separate from the chamber-l and itsextension 5, and bolted or otherwise secured, as at 7*, to the chamber1, so as to be in free communication therewith. This valve-chamber has apair of valve-seats 8 in axial line and a connecting by-pass or passages9, connecting the valvechamber around the central passage therein.

`l0 are a -pair of balanced valves seating downwardly upon thevalve-seats 8 and connected by valve-stem 15. V11 is the central or mainchamber of the valve-chamber and is in free communication with a port12, leading to the chamber 1.

13 isthe inlet-pipe of the chamber 1, which may beV a drainage-inlet ora steam or other inlet, according to the purpose for which the inventionis used. 1 y Y 14 is the drain or other outlet from the chamber 1 and isin free communication with thevalve-chalnber 6.7.The lower Iioat-stem 3is preferably tubular down to its connection with the lateral pipe 16,which rigidly unites the float-stem 3 to the valve-stem 15. Thevalve-stem 15 is also made tubular, so as to provide a drainageconnection from the hollow float 2 down through the valvechamber 6 outinto the outlet-pipe 14. The connecting-pipe 16 is preferably screwedinto the iioat-stem 3, and threads are formed upon its oppositeends, bymeans of which nuts 17 may be set up against the valve-stem 15 to adjustthe parts inthe proper position.

The valve-stem 15 has preferably a circular bearing formed transverselythrough it, through which the pipe 16 passes, thereby forming a bearingbetween the two, and an annular recess 18 is preferably formed aroundthe edge of the bearing, so that no matter what the angle of adjustmentbetween the pipe 16 and the valve-stem may be an open communication willbe established' between the same for draining the float-valve 2.

In Fig. 6 the valve-stem 15 is shown hollow throughout its length, whilein Fig. v7 the lower portion of the valve-stem only is tubular. In theiirst case the liquid may escape IOO at both ends of the valvestem,while in the latter case the liquid escapes through the lower end only.

It will be obvious that owing to the rigid connection between the floatand the balanced double valve the latter will partake of thereciprocating movement of Ithe ioat due to the Varying amount of fluidin the chamber, the valve and oat being suitably guided for thatpurpose.

A series of screw-plugs 23 are employed, as indicated, in order thataccess may be had to the several parts.

25 is a removable cover for the chamber l, through which the iioat maybe removed when desired.

In operation the device may be set so that the float will open thebalance-valve at any predetermined height of water and to close the samewhen the liquid falls below that point.

The balanced valves l0 are adj ustable,with relation to each other andtheir seats, upon their stem, as shown. By this adjustment also, ifdesired, the height of the float in the chamber when the valves areseated may be Varied.

Having thus described my invention, what I claim, and desire to obtainby Letters Pat-v ent, is-

l. The combination of a chamber, a float therein, abearing at the top ofthe lioat, a tubular stem forming a bearing at the lower end of theI'loat, a tube extending laterally a tubular stem forming a bearing atthe lower end of the float, a tube extending laterally between theneat-bearings, a tubular Valvestem secured to said lateral tube, adouble balance-Valve carried upon the said valveste1n,Valve-seats forthe valves, and inlet and outlet ports for the chamber, the float-stem,lateral tube and Valve-stem forming a drainage connection for theinterior of the iioa-t.

The combination, in a trap, of the hollow float, a bearing at the top ofthe float, a tubular iloat-stem forming a bearing at the lower end ofthe float, a lateral tube connected therewith, a reciprocating tubularValvestem having an opening at right angles thereto to receive thelateral tube, adjustable means for securing the valve-stein upon thelateral tube and a slide-Valve carried upon said valve-stem.

In testimony whereof I affix my signature in the presence of twowitnesses.

JAMES II. FOGAR'IY.

Vitnesses:

WM. II. WEIGHTMAN, W. E. KIMBALL.

